Revision 11:9e1fc2233b0e, committed 2015-04-28

Comitter:

JackB

Date:

Tue Apr 28 21:12:26 2015 +0000

Parent:

10:535d2140db2c

Commit message:

InterruptIn used, when touched

Changed in this revision

diff -r 535d2140db2c -r 9e1fc2233b0e FT6206.cpp
--- a/FT6206.cpp	Tue Mar 24 01:31:42 2015 +0000
+++ b/FT6206.cpp	Tue Apr 28 21:12:26 2015 +0000
@@ -23,7 +23,8 @@
   ----> http://www.adafruit.com/products/1947
 This chipset uses I2C to communicate
 
-Based on Arduino written by Limor Fried/Ladyada for Adafruit Industries.
+Based on code by Limor Fried/Ladyada for Adafruit Industries.
+MIT license, all text above must be included in any redistribution.
 
 On the shield, these jumpers were bridged:
 Int - #7 (default)
@@ -101,8 +102,15 @@
 {
     m_addr = (FT6206_ADDR << 1);
     m_i2c.frequency(FT6206_I2C_FREQUENCY);
+
     m_interrupt.mode(PullUp);
+    m_interrupt.enable_irq(); 
+    m_interrupt.fall(this, &FT6206::checkDataReceived);
+
     init();
+
+//    tick.attach(this, &FT6206::checkDataReceived, 0.00001); // Every 10 us id data was received
+
 }
 
 FT6206::~FT6206()
@@ -118,19 +126,20 @@
 bool FT6206::init(uint8_t threshhold) {
   // change threshhold to be higher/lower
   writeRegister8(FT6206_REG_THRESHHOLD, FT6206_DEFAULT_THRESSHOLD);
+//  writeRegister8(FT6206_REG_POINTRATE, 80);
   
   if (readRegister8(FT6206_REG_VENDID) != 17)
     return false;
   
   if (readRegister8(FT6206_REG_CHIPID) != 6)
     return false;
-/*
-  printf("Vend ID: %d\n", readRegister8(FT6206_REG_VENDID));
-  printf("Chip ID: %d\n", readRegister8(FT6206_REG_CHIPID));
-  printf("Firm V: %d\n", readRegister8(FT6206_REG_FIRMVERS));
-  printf("Rate Hz: %d\n", readRegister8(FT6206_REG_POINTRATE));
-  printf("Thresh: %d\n", readRegister8(FT6206_REG_THRESHHOLD));
-*/
+
+//  printf("Vend ID: %d\n", readRegister8(FT6206_REG_VENDID));
+//  printf("Chip ID: %d\n", readRegister8(FT6206_REG_CHIPID));
+//  printf("Firm V: %d\n", readRegister8(FT6206_REG_FIRMVERS));
+//  printf("Rate Hz: %d\n", readRegister8(FT6206_REG_POINTRATE));
+//  printf("Thresh: %d\n", readRegister8(FT6206_REG_THRESHHOLD));
+
   // dump all registers
 /*
     for (int16_t i=0; i<0x20; i++) {
@@ -147,12 +156,36 @@
     return false;
 }
 
+void FT6206::checkDataReceived(void) {
+    // InterruptIn pin used
+//    // Runs every 0.00001 Sec. in Ticker
+//    if (dataReceived()) {
+        DataReceived = true;
+//    }
+}
+
+bool FT6206::getDataReceived(void) {
+    bool _DataReceived = DataReceived;
+    DataReceived = false;
+    return _DataReceived;
+}
+
+void FT6206::waitScreenTapped(void) {
+    DataReceived = false;
+    while (!getDataReceived()) {
+        wait(0.01);
+    }
+}
+
 bool FT6206::getTouchPoint(TS_Point &p) {
-    if (dataReceived()) {
+//    if (touched()) {
+//    if (dataReceived()) {
+    if (getDataReceived()) {
         // Retrieve a point  
         p = getPoint();
         return true;
     }
+    p = clearPoint();
     return false;   
 }
 
@@ -223,6 +256,11 @@
     return TS_Point(x, y, 1);
 }
 
+TS_Point FT6206::clearPoint(void) {
+    uint16_t x = 0, y = 0;
+    return TS_Point(x, y, 1);
+}
+
 char FT6206::readRegister8(char reg) {
     char val;
     m_i2c.write(m_addr, &reg, 1);

diff -r 535d2140db2c -r 9e1fc2233b0e FT6206.h
--- a/FT6206.h	Tue Mar 24 01:31:42 2015 +0000
+++ b/FT6206.h	Tue Apr 28 21:12:26 2015 +0000
@@ -23,7 +23,8 @@
   ----> http://www.adafruit.com/products/1947
 This chipset uses I2C to communicate
 
-Based on Arduino written by Limor Fried/Ladyada for Adafruit Industries.
+Based on code by Limor Fried/Ladyada for Adafruit Industries.
+MIT license, all text above must be included in any redistribution.
 
 On the shield, these jumpers were bridged:
 Int - #7 (default)
@@ -161,17 +162,31 @@
     
     bool touched(void);
     TS_Point getPoint(void);
+    TS_Point clearPoint(void);
+
+    void checkDataReceived(void);
+    
+    bool getDataReceived(void);
+
+    void waitScreenTapped(void);
 
     bool getTouchPoint(TS_Point &p);
 
+    Ticker tick;
+
  private:
-    DigitalIn m_interrupt; 
+//    DigitalIn m_interrupt; 
+    InterruptIn m_interrupt;
+
     I2C m_i2c;
     int m_addr;
     char data[2];
 
     uint8_t touches;
     uint16_t touchX[2], touchY[2], touchID[2];
+    
+    bool DataReceived;
+
 
 };